Coupons....anyone couponing?

Hi i work part time. Used to be full time. But went to part time for my son. Now i want to start couponing, every Little bit helps ive been wanting to do this for awhile. But where should i start? I know stores have their own sales bogo etc but i know i can do more. So are there any full time couponers on here that can help put me in the right, give any advice. How did you get started? Thank you for all your help.